cloud engineer
Here’s how to install a LAMP server on the latest Ubuntu 20.04 LTS.
Install Apache.
apt install apache2
systemctl status apache2
systemctl is-enabled apache2 |
apt install apache2 systemctl status apache2 systemctl is-enabled apache2
Install MariaDB.
apt install mariadb-server mariadb-client
systemctl status mariadb
systemctl is-enabled mariadb
mysql_secure_installation |
apt install mariadb-server mariadb-client systemctl status mariadb systemctl is-enabled mariadb mysql_secure_installation
Install PHP.
apt install php libapache2-mod-php php-mysql
systemctl restart apache2 |
apt install php libapache2-mod-php php-mysql systemctl restart apache2
Enable ssl and mod_rewrite.
a2enmod ssl a2enmod rewrite systemctl restart apache2 |
a2enmod ssl a2enmod rewrite systemctl restart apache2
Here are steps I took to upgrade from PHP 7.0 to 7.4 on Ubuntu 18.04 LTS.
Login as root, otherwise use sudo for all commands.
# use 3rd party ppa repo add-apt-repository ppa:ondrej/php apt -y update apt -y upgrade # install php-core apt install php7.4 php7.4-common php7.4-cli # add all the php extenstions your app needs apt install php7.4-curl php7.4-json php7.4-gd php7.4-mbstring apt install php7.4-intl php7.4-bcmath php7.4-bz2 php7.4-xml apt install php7.4-readline php7.4-zip php7.4-mysql # I'm using apache prefork MPM, so install it apt install libapache2-mod-php7.4 a2enmod php7.4 # check version. Success! php -v # for good measure, reboot apache systemctl restart apache2.service # Finally, purge the old PHP versions apt purge php7.0 libapache2-mod-php7.0 |
# use 3rd party ppa repo add-apt-repository ppa:ondrej/php apt -y update apt -y upgrade # install php-core apt install php7.4 php7.4-common php7.4-cli # add all the php extenstions your app needs apt install php7.4-curl php7.4-json php7.4-gd php7.4-mbstring apt install php7.4-intl php7.4-bcmath php7.4-bz2 php7.4-xml apt install php7.4-readline php7.4-zip php7.4-mysql # I'm using apache prefork MPM, so install it apt install libapache2-mod-php7.4 a2enmod php7.4 # check version. Success! php -v # for good measure, reboot apache systemctl restart apache2.service # Finally, purge the old PHP versions apt purge php7.0 libapache2-mod-php7.0
Finally, run update on more time to get all the latest updates.
apt -y update apt -y upgrade apt -y autoremove apt-get --with-new-pkgs upgrade |
apt -y update apt -y upgrade apt -y autoremove apt-get --with-new-pkgs upgrade
Here’s how to list the available PHP modules.
apt-cache search php- | less |
apt-cache search php- | less
To get details about a module.
apt-cache show php-curl |
apt-cache show php-curl
To install a module.
apt install php-curl |
apt install php-curl
Or install all modules.
apt install php* |
apt install php*
Restart Apache after each install.
systemctl restart apache2 |
systemctl restart apache2
Here’s how to run a shell script from your website. You’ll need 2 files.
Here’s the contents of foo.php. Wrap your output with ‘pre’ for better formatting.
<?php $output = shell_exec('/var/www/html/bar.sh 2>&1'); echo "$output"; |
<?php $output = shell_exec('/var/www/html/bar.sh 2>&1'); echo "$output";
Here’s the content of bar.sh. Output will be displayed on web page.
#!/bin/bash now="$(date +'%y%m%d')" echo $now aws s3 ls |
#!/bin/bash now="$(date +'%y%m%d')" echo $now aws s3 ls
Here’s how to fix when phpinfo is displaying a blank page. The install is missing this php module.
apt install php libapache2-mod-php |
apt install php libapache2-mod-php
Restart after install.
service apache2 restart |
service apache2 restart